The Whitewater River Run in Oregon is a thrilling adventure that spans from the Mt. Jefferson Wilderness Boundary to Highway 22. The ideal streamflow range for this run is between 300-750 cfs, with the best time to run being in the spring and early summer when the snowmelt is at its peak. This section of river is classified as a Class III-IV, which means it has moderate to difficult rapids with powerful waves and currents.

The segment mileage of the Whitewater River Run is approximately 12 miles, with numerous class III rapids and a few class IV rapids such as "The Chute" and "Bus Eater." Other obstacles to be aware of include logjams and sweepers, which can be dangerous if not navigated properly.

There are specific regulations to the area that visitors must abide by, including a permit requirement for overnight camping in the Mt. Jefferson Wilderness. Additionally, boaters must have a valid permit from the Bureau of Land Management to access the river. Visitors are also expected to follow Leave No Trace principles and respect the natural environment around them.

Overall, the Whitewater River Run is a challenging and exciting adventure for experienced paddlers. It's important to pay attention to the ideal streamflow range, class rating, segment mileage, specific river rapids/obstacles, and specific regulations to ensure a safe and enjoyable experience.